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MAINTENANCE SAFETY
WARNING
Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can cause injury or death. W-2003-0807
Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is involved!” Carefully read the message that follows.
CORRECT
B-10731a
Never service the Bobcat Backhoe Loader without instructions.
B-16768
Always use an approved lift arm support device when servicing the backhoe loader with the lift arms raised. Replace the lift arm support device if damaged or missing. Disconnecting or loosening any hydraulic tubeline, hose, fitting component, or part failure can cause lift arms or backhoe boom to drop.
CORRECT
B-16738
Cleaning and maintenance are required daily. NEVER modify equipment or add attachments not approved by Bobcat.
WRONG
WRONG
WRONG
B-16730
B-16746
B-16719
Have good ventilation when welding or grinding painted parts. Wear dust mask when grinding painted parts. Toxic dust and gas can be produced.
Vent exhaust to outside when engine must be run for service. Exhaust system must be tightly sealed. Exhaust Fumes can kill without warning.
Never work on backhoe loader with lift arms raised unless supported by an approved lift arm support device. Always lower the backhoe bucket to the ground before doing any maintenance.
WRONG
WRONG
WRONG
B-16571
B-16731
B-6589
Stop, cool and clean engine of flammable materials before checking fluids. Never service or adjust machine with the engine running unless instructed to do so in the manual. Avoid contact with leaking hydraulic fluid or diesel fuel under pressure. It can penetrate the skin or eyes. Never fill fuel tank with engine running, while smoking or when near open flame.
Keep body, jewelry and clothing away from moving parts, electrical contact, hot parts and exhaust. Wear eye protection to guard from battery acid, compressed springs, fluids under pressure and flying debris when engines are running or tools are used. Use eye protection approved for type of welding. Keep engine cover closed except for service. Close and latch engine cover before operating the backhoe loader.
Lead-acid batteries produce flammable and explosive gases. Keep arcs, sparks, flames and lighted tobacco away from batteries. Batteries contain acid which burns eyes or skin on contact. Wear protective clothing. If acid contacts body, flush well with water. For eye contact flush well and get immediate medical attention.
Maintenance procedures which are given in the Operation & Maintenance Manual can be performed by the owner/ operator without any specific technical training. Maintenance procedures which are not in the Operation & Maintenance Manual must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL. Always use genuine Bobcat replacement parts. MSW46-0116 1-1 3 of 674
B730 & B750 Service Manual
Dealer Copy -- Not for Resale
CORRECT
CONTENTS GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-01 LUBRICATION AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-01 HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-01 ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-01 AXLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-01 TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-01 ENGINE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70-01
Dealer Copy -- Not for Resale
ALPHABETICAL INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INDEX-01
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B730 & B750 Service Manual
GENERAL INFORMATION
TECHNICAL PROPERTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B730 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Axle / Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cab / Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B750 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Axle / Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cab / Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-20-1 10-20-1 10-20-1 10-20-1 10-20-1 10-20-1 10-20-2 10-20-2 10-20-2 10-20-2 10-20-2 10-20-3 10-20-3 10-20-3 10-20-4 10-20-4 10-20-4 10-20-4 10-20-4 10-20-5 10-20-5 10-20-5 10-20-5 10-20-5 10-20-5 10-20-6 10-20-6
MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1 POSITION OF MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1 Loader Attachment Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1 Backhoe Attachment Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1 SAFETY INSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Crushing And Burning Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire And Explosion Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Lines And Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-50-1 10-50-2 10-50-3 10-50-3 10-50-4
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1 Preparing The Machine For Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1 Preparing The Machine For Work After A Long Period Of Storage . . . . . . . . . . . . . 10-60-1
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B730 & B750 Service Manual
Dealer Copy -- Not for Resale
MACHINE INFOMRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-1 B730 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-1 B750 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-3
MACHINE INFOMRATION B730 Specification These are backhoe loaders that are designed with operating weight up to 8.2 tons, rigid frame, bucket capacity of 0.2 mÂł and shovel capacity of 1.1 mÂł. This machine is designed to dig and load in closed and open terrain.
Dealer Copy -- Not for Resale
WARNING: Because of exhaust gas, use the machine only in well ventilated areas.
S47161 S47162A
A Overall Machine Length In Travel Position
7585 mm (298.62 in)
G
Machine Width
2280 mm (89.76 in)
B Wheelbase
2175 mm (85.63 in)
H
Rear Wheel Track
1770 mm (69.68 in)
C Backhoe Swing Centre Distance
3060 mm (120.47 in)
J
Stabilisers Up
2200 mm (86.61 in)
290 mm (11.41 in)
K
Stabilisers Down
3685 mm (145.00 in)
D Minimum Machine Height E Cab Height
2900 mm (114.17 in)
L
Front Wheel Track
1895 mm (74.61 in)
F Machine Height In Travel Position
3900 mm (153.54 in)
M
Overall Width With Bucket
2280 mm (89.76 in)
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B730 & B750 Service Manual
MACHINE INFOMRATION (CONT’D)
S47163
Retracted A Maximum Dig Depth
Extended
4600 mm (181.10 in) 5800 mm (228.35 in)
I
Distance Between Hinge Pin And Front Axle Centre
B Max Reach From Rear Axle Centre 7000mm (275.59 in) 8100 mm (318.90 in)
J
Max Rollback Angle, Fully Raised
C Max Reach From Swing Centre
K
Dump Height
5700 mm (224.41 in) 6800 mm (267.72 in)
1220mm (48.03 in) 59.2° 2810 mm (110.63 in)
D Maximum Digging Height
5600 mm (220.47 in) 6450 mm (253.94 in)
L
Load-over Height
3280 mm (129.13 in)
E Maximum Dumping Height
3850 mm (151.57 in) 4700 mm (185.04 in)
M
Height To Hinge Pin
3520 mm (138.58 in)
F Loading Reach
1800 mm (70.87 in) 2650 mm (104.33 in)
N
Max Reach At Full Height
1070 mm (42.13 in)
O
Dumping Reach
620 mm (24.41 in)
P
Digging Depth
115 mm (4.53 in)
R
Dump Angle
G Bucket Rotation Angle H Max Bucket Hinge Pin Height
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200.4°
200.4°
4750 mm (187.01 in) 5550 mm (218.50 in)
10-10-2
45°
B730 & B750 Service Manual
Dealer Copy -- Not for Resale
B730 Specification (Cont’d)
MACHINE INFOMRATION (CONT’D) B750 Specification
S47161 S47162A
A Overall Machine Length In Travel Position
7735 mm (304.5 in)
G
B Wheelbase
2175 mm (85.63 in)
H
Rear Wheel Track
1770 mm (69.68 in)
C Backhoe Swing Centre Distance
3060mm (120.47 in)
J
Stabilisers Up Width
2200 mm (86.61 in)
D Minimum Machine Height
310 mm (12.20 in)
K
Stabilisers Down Width
3685 mm (145.08 in)
E Cab Height
2900 mm (11.17 in)
L
Front Wheel Track
1895 mm (74.61 in)
F Machine Height In Travel Position
3900 mm (153.54 in)
M
Overall Width With Bucket
2280 mm (89.76 in)
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10-10-3
Machine Width
2280 mm (89.76 in)
B730 & B750 Service Manual
Dealer Copy -- Not for Resale
These are backhoe loaders that are designed with operating weight up to 8.2 tons, rigid frame, bucket capacity of 0.2 m³ and shovel capacity of 1.1 m³. This machine is designed to dig and load in closed and open terrain.
MACHINE INFOMRATION (CONT’D)
S47163
Retracted
Extended
A Maximum Dig Depth
4600 mm (181.10 in) 5800 mm (228.35 in)
I
Distance Between Hinge Pin And Front Axle Centre
1460mm (57.48 in)
B Max Reach From Rear Axle Centre
7000mm (275.59 in) 8100 mm (318.90 in)
J
Max Rollback Angle, Fully Raised
59.2°
C Max Reach From Swing Centre
5700 mm (224.41 in) 6800 mm (267.72 in)
K
Dump Height
2950 mm (116.14 in)
D Maximum Digging Height
5600 mm (220.47 in) 6450 mm (253.94 in)
L
Loadover Height
3370 mm (132.68 in)
E Maximum Dumping Height
3850 mm (151.57 in) 4700 mm (185.04 in)
M
Height To Hinge Pin
3670 mm (144.49 in)
F Loading Reach
1800 mm (70.87 in) 2650 mm (104.33 in)
G Bucket Rotation Angle H Max Bucket Hinge Pin Height
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200.4°
200.4°
4750 mm (187.01 in) 5550 mm (218.50 in)
10-10-4
N
Max Reach At Full Height 1125 mm (44.29 in)
O
Dumping Reach
685 mm (24.41 in)
P
Digging Depth
113 mm (4.45 in)
R
Dump Angle
45°
B730 & B750 Service Manual
Dealer Copy -- Not for Resale
B750 Specification (Cont’d)
TECHNICAL PROPERTIES B730 Specifications Engine Make & Model
PERKINS 1104C-44T
Emission Type
Tier II
Engine Type
4 Stroke diesel, Turbocharged
Engine Power
74.5 kW/ 100 hp
Rated Speed
2200 rpm
Displacement
4.4 L (268.5 ci)
Bore And Stroke
105 x 127 mm (4.13 x 5.00 in)
Number Of Cylinder
4
Maximum Torque
408 N•m (300.92 ft-lb)
Cooling
Water cooled
Battery
12 volt / 120 Ah
Starter
3,2 kW (4.3 hp)
Alternator
75A
Hydraulic System Type
Open center
Hydraulic Pump
Tandem Gear
Maximum Flow
90 + 64 Lpm (23.78 + 16.91 gpm)
Maximum Pressure
22000 kPa (220 bar) (3191 psi)
Hydraulic Oil Filter
Full flow filter in return line with integrated fine filter area
Hydraulic Oil Cooler
Hydraulic and transmission oil cooler
Hydraulic Controls Backhoe Control
Mechanical control lever
Loader Control
Mechanical control lever
Transmission Make
ZF
Drive
4 Wheel Drive
Type
Powershift
2WD / 4WD Selection
By switch on dash panel
Transmission Disconnect Travel Speeds
Push button and brake system Forward
Reverse
1st
6,5 km/h (4.0 mph)
7,0 km/h (4.4 mph)
2nd
11 km/h (6.8 mph)
12 km/h (7.5 mph)
3rd
26 km/h (16.2 mph)
30 km/h (18.6 mph)
4th
40 km/h (24.9 mph)
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B730 & B750 Service Manual
Dealer Copy -- Not for Resale
Electrical System
TECHNICAL PROPERTIES (CONT’D) B730 Specifications (Cont’d) Axle / Brakes Type (Front and Rear)
ZF
Front Axle Oscillation
20 degrees
Steering angle
52 degrees
Rear Axle
Electro-hydraulic operated differential lock, outboard planetary design, self-adjusting high torque internal wet service brake
Service Brake Type
Hydraulic wet multi - disc
Parking Brake Type
Mechanical control on rear axle
Tires Front 2WD / 4WD - standard
12.5 - 18
Rear - standard
16.9 - 28
Bucket capacity
1.1 m³ (1.4 y³)
Breakout force - lift
81,5 kN (118322 lbf)
Breakout force shovel maximum
60,5 kN (13601 lbf)
Bucket width
2280 mm (69.76 in)
Lift height to hinge pin
3520 mm (138.58 in)
ROC (ISO 14397-1) Bucket Application
3413 kg (7524 lb)
Backhoe Maximum bucket break - out force
59,1 kN (13277 lbf)
Bucket capacity
0.2 m³ (0.26 y³)
Bucket width
600 mm (23.62 in)
Arm tear - out Retracted
31,8 kN (7140 lbf)
Extended (With Optional extendable arm)
22,4 kN (5033 lbf)
Cab / Canopy Cab
ROPS (ISO 3741) and FOPS (ISO 3449 Level II) type tinted safety glass giving total visibility, full opening rear-side windows, front and rear windshield wipers, fully adjustable front/rear and up/ down seat, Fresh air heater/blower, full heat control
Canopy
ROPS (ISO 3741) and FOPS (ISO 3449 Level II), fully adjustable front/rear and up/down seat.
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B730 & B750 Service Manual
Dealer Copy -- Not for Resale
Loader
TECHNICAL PROPERTIES (CONT’D) B730 Specifications (Cont’d) Steering Steering type
2 wheel hydraulic
Power steering
Hydrostatic
Turning circle - outer front tire clearance
9500 mm (31.2 ft)
Turning circle - outer bucket clearance
12,320 mm (40.4 ft)
MAXIMUM CAPACITY
SERVICE CAPACITY
8.4 l (8.9 qt)
8.0 l (8.5 qt)
Cooling system
25,0 l (6.6 U.S. gal)
25,0 l (6.6 U.S. gal)
Fuel tank
140,0 l (37 U.S. gal)
140,0 l (37 U.S. gal)
Hydraulic tank
75,0 l (19.8 U.S. gal)
90,0 l (23.8 U.S. gal)
Hydraulic system
130,0 l (34.3 U.S. gal)
130,0 l (34.3 U.S. gal)
19,0 l (5.0 U.S. gal)
14,0 - 16 l (3.7 - 4.2 U.S. gal)
Front
8,0 l (8.5 qt)
5,5 l (5.8 qt)
Rear
16,0 l (4.2 U.S. gal)
9,0 l (2.4 U.S. gal)
Brake oil
0,4 l (0.42 qt)
0,4 l (0.42 qt)
Engine oil (with filters)
Transmission Axle oil
Weights Operating Weight
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7800 kg (17196 lb)
10-20-3
B730 & B750 Service Manual
Dealer Copy -- Not for Resale
Capacities
TECHNICAL PROPERTIES (CONT’D) B750 Specifications Engine Make & Model
PERKINS 1104C-44T
Emission Type
Tier II
Engine Type
4 Stroke diesel, Turbocharged
Engine Power
74.5 kW/ 100 hp
Rated Speed
2200 rpm
Displacement
4.4 L (268.5 ci)
Bore And Stroke
105 x 127 mm (4.13 x 5.00 in)
Number Of Cylinder
4
Maximum Torque
408 N•m (300.92 ft-lb)
Cooling
Water cooled
Battery
12 volt / 120 Ah
Starter
3,2 kW (4.3 hp)
Alternator
75A
Hydraulic System Type
Open Center
Hydraulic Pump
Tandem Gear
Maximum Flow
90 + 64 Lpm (23.78 + 16.91 gpm)
Maximum Pressure
22000 kPa (220 bar) (3191 psi)
Hydraulic Oil Filter
Full flow filter in return line with integrated fine filter area
Hydraulic Oil Cooler
Hydraulic and transmission oil cooler
Hydraulic Controls Backhoe Control
Pilot controls
Loader Control
Pilot controls
Transmission Make
ZF
Drive
4 Wheel Drive
2WD / 4WD Selection
By switch on dash panel
Type
Powershift
Transmission disconnect Travel Speeds
Push button and brake system Forward
Reverse
1st
6,5 km/h (4.0 mph)
7,0 km/h (4.4 mph)
2nd
11 km/h (6.8 mph)
12 km/h (7.5 mph)
3rd
26 km/h (16.2 mph)
30 km/h (18.6 mph)
4th
40 km/h (24.9 mph)
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B730 & B750 Service Manual
Dealer Copy -- Not for Resale
Electrical System
TECHNICAL PROPERTIES (CONT’D) B750 Specifications (Cont’d) Axle / Brakes Type
ZF
Front Oscillation
20 degrees
Steering angle
52 degrees
Rear Axle
Electro-hydraulic operated differential lock, outboard planetary design, self-adjusting high torque internal wet service brake
Service Brake Type
Hydraulic wet multi - disc
Parking Brake Type
Mechanical control on rear axle
Tires Front 4WD - standard
14.5 - 20
Rear 4WD - standard
16,9 - 28
Shovel capacity
Dealer Copy -- Not for Resale
Loader 1,1 m³ (1.4 y³)
Breakout force - lift
56,1 kN (12612 lbf)
Breakout force shovel maximum
81,6 kN (18344 lbf)
Bucket width
2280 mm (89.76 in)
Lift height to hinge pin
3670 mm (144.49 in)
ROC (ISO 14397-1) Bucket Application
2905.5 kg (6505 lb)
Backhoe Maximum bucket breakout
59,1 kN (13277 lbf)
Arm breakout force Retracted
31,8 kN (7140 lbf)
Extended (with optional extendable arm)
22,4 kN (5036 lbf)
Bucket capacity
0,2 m³ (0.26 y³)
Bucket width
600 mm (23.62 in)
Cab / Canopy Cab
Canopy
ROPS (ISO 3741) and FOPS (ISO 3449 Level II) type tinted safety glass giving total visibility, full opening rear-side windows, front and rear windshield wipers, fully adjustable front/rear and up/ down seat, Fresh air heater/blower, full heat control ROPS (ISO 3741) and FOPS (ISO 3449 Level II), fully adjustable front/rear and up/down seat.
Steering Steering type
2 wheel steer hydrostatic
Power steering
Hydrostatic
Turning circle - outer front tire clearance
12,170 mm (39.9 ft)
Turning circle - outer bucket clearance
14,600 mm (47.9 ft)
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B730 & B750 Service Manual
TECHNICAL PROPERTIES (CONT’D) B750 Specifications (Cont’d) Capacities MAXIMUM CAPACITY
SERVICE CAPACITY
8.4 l (8.9 qt)
8.0 l (8.5 qt)
Cooling system
25,0 l (6.6 U.S. gal)
25,0 l (6.6 U.S. gal)
Fuel tank
140,0 l (37 U.S. gal)
140,0 l (37 U.S. gal)
Hydraulic tank
75,0 l (19.8 U.S. gal)
90,0 l (23.8 U.S. gal)
Hydraulic system
130,0 l (34.3 U.S. gal)
130,0 l (34.3 U.S. gal)
19,0 l (5.0 U.S. gal)
14,0 - 16 l (3.7 - 4.2 U.S. gal)
Front
8,0 l (8.5 qt)
5,5 l (5.8 qt)
Rear
16,0 l (4.2 U.S. gal)
9,0 l (2.4 U.S. gal)
Brake oil
0,4 l (0.42 qt)
0,4 l (0.42 qt)
Engine oil (with filters)
Transmission Axle oil
Operating Weight
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Dealer Copy -- Not for Resale
Weights 8000 kg (17637 lb)
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B730 & B750 Service Manual
MAIN COMPONENTS 1
9
8 16
8 3
17
2 5
4 18
8
15
14
NA13488
12
Dealer Copy -- Not for Resale
9 6 11 13
19
7 10 10
NA13489
1
OPERATOR’S CAB (WITH ROPS / FOPS) [A]
11 BACKHOE ARM
2
LOADER BUCKET
12 BACKHOE BOOM
3
LIFT ARM
13 STABILISERS
4
FRONT AXLE
14 HYDRAULIC OIL TANK (With left side steps)
5
REAR AXLE
15 BATTERY BOX
6
FUEL TANK (With right side steps)
16 ENGINE BONNET
7
BACKHOE BUCKET [B]
17 APPROVED LIFT ARM SUPPORT DEVICE
8
WORK LIGHTS
18 BOOM LOCKOUT
9
MIRRORS
19 BUCKET LINK
TYRES [A] - Roll Over Protective Structure (ROPS) per ISO 3471 and Falling Over Protective Structure (FOPS) per ISO 3449, Level II. [B] - Several different buckets and other attachments are available for the Bobcat backhoe loader. 10
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10-30-1
B730 & B750 Service Manual
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POSITION OF MACHINE The terms right, left, front and rear are used referring to the operator seated on the driver seat for the loader and backhoe attachment position. Loader Attachment Position RIGHT-HAND SIDE
FORWARD
LEFT-HAND SIDE
Backhoe Attachment Position LEFT-HAND SIDE
FORWARD
REAR
RIGHT-HAND SIDE
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10-40-1
B730 & B750 Service Manual
Dealer Copy -- Not for Resale
REAR
SAFETY INSTRUCTION In this manual safety signs are classified according to the relative seriousness of the hazard situation by the use of the signal word. Two signal words are used: DANGER and WARNING. The signal word alerts you to the existence and relative seriousness of a hazard and it is essential that you understand these signal words fully. DANGER: The signal word DANGER on the machine and in the manuals indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING: The signal word WARNING on the machine and in the manuals indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Dealer Copy -- Not for Resale
In addition to these instructions you must follow the safety regulations applicable to your work environment and job site and any federal, state and local safety requirements.
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B730 & B750 Service Manual
•
SAFETY INSTRUCTION (CONT’D)
If no other guidelines are given, perform maintenance and repairs utilising the following precautions:
General Safety Information Study the Operation & Maintenance Manual before operating or working on the backhoe loader, make sure that you have additional information for special attachments of your machine, read it and understand it!
•
Allow only authorized personnel informed about the safety rules to operate, service or repair the backhoe loader, be sure to observe any minimum applicable age requirement.
•
Allow only properly trained personnel to operate or work on the backhoe loader, make sure to clearly specify the person who is responsible for set up, maintenance and repairs.
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3. Turn the engine off and remove the ignition key. •
Before working on the hydraulic circuit, move all levers and pedals with the ignition key in contact position to release the hydraulic accumulator pressure and the remaining pressures in the different main circuits. In addition, relieve the pressure in the hydraulic tank as described in the Operation & Maintenance Manual.
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Make sure there is no leak in the hydraulic system and check the machine daily.
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Check the area where you will work before starting to work. Be certain that all safety systems operate properly.
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Secure all loose parts on the backhoe loader.
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Never operate the backhoe loader without a complete walk around inspection. Check if all warning decals are on the machine and if they are legible.
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Observe all danger and safety guidelines.
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For certain applications, the backhoe loader must be equipped with specific safety equipment. Use the backhoe loader only, if they are installed and functioning properly.
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Never perform any changes, additions or modifications on the machine, which could influence the safety, without obtaining written first permission from the manufacturer. This also applies to the installation and adjustment of safety devices and safety valves as well as to any welding on load carrying parts.
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Do not install any equipment or attachments made by other manufacturers or any which are not specifically authorized by BOBCAT for installation without first obtaining the written permission from BOBCAT. BOBCAT will issue any required technical documentation for approved installations.
•
Should the electrical circuit be modified or additional components be installed, so the modification must be performed according to the national standards and safety regulations. The installation must be certificated by an approved organization and a copy of the certification has to be sent to the BOBCAT company.
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B730 & B750 Service Manual
Make sure the operator knows his responsibility regarding the observance of traffic regulations and permit him to refuse any unsafe instructions given by a third person. Any person still in training should only operate or work on the machine under the supervision and guidance of an experienced person. Check and observe any person working or operating the backhoe loader periodically and check regularly, if they observe safety instructions and guidelines given in the Operation & Maintenance Manual. Wear proper work clothing when operating or working on the backhoe loader. Ring, watches, bracelets and loose clothings such as ties, scarves, unbuttoned or unzipped shirts and jackets are dangerous and could cause injury! Wear proper safety equipment, such as safety glasses, safety shoes, hard hats, work gloves, reflector vests and ear protection.
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Consult your employer or supervisor for specific safety equipment requirements and safety regulations on the job site.
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Do not carry tools, replacements parts or other supplies while climbing on or off the backhoe loader. Never use the steering column, control levers or joysticks as handholds.
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Never jump off the backhoe loader, climb on and off the backhoe loader using only the steps, rails and handles provided.
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When climbing on or off the backhoe loader, use both hands for support and face the machine.
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If needed, use the rear window or right door as an escape hatch.
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2. Place all control in NEUTRAL position and engage park brake.
Dealer Copy -- Not for Resale
•
1. Park backhoe loader on firm and level ground. Rest the attachments on the ground.
SAFETY INSTRUCTION (CONT’D)
•
Battery must be fully charged to prevent frozen electrolyte.
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Always start the engine as described in the Operation & Maintenance Manual.
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Clean the machine regularly and remove all debris which may cause a fire.
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Don’t use flammable cleanser.
•
Observe the following recommendations due to be protected from an explosion
Crushing And Burning Prevention
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Never work underneath the backhoe loader unless it is safely resting on the ground and / or is properly blocked and supported. Never use damaged or insufficient wire ropes, slings or chains. Always wear gloves when handling wire ropes. Never reach into bores during attachment installation or removal. Never align bores with fingers or hands. Use proper alignment tools when installing, changing or servicing attachments.
•
Keep objects away from the radiator fan. Rotating fans will swirl and throw out objects, which can become very dangerous and cause severe injury to yourself and others.
•
Avoid contact with any components containing coolant. At or near operating temperature, the engine coolant is hot and under pressure and could cause severe burns.
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1. Disconnect the negative (-) cable first and reconnect it last. 2. Never touch battery terminal with a metal object. •
Check the electrical system regularly and frequently. All defects, such as loose connections, burnt out fuses and bulbs, burnt or damaged cables must be repaired immediately by an electrician or specially trained person.
•
Before work in an area including flammable gas, thoroughly ventilate this area.
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Never store flammable fluids on the machine except in storage tanks intended for the backhoe loader’s operation.
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Inspect all component, lines, tubes and hoses for oil and fuel leaks and / or damage. Replace or repair any damaged components immediately. Any oil, which escapes from leaks, can easily cause a fire.
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Be certain that all clamps, guards and heat shields are installed. These components prevent vibration, rubbing, chafing and heat build-up. Install tie wraps to fasten hoses and wires, as required.
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Cold start ether is extremely flammable. Use ether only in ventilated areas and as directed. Never use it near heat sources or open flames. Do not permit anybody to smoke.
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Know the location of the backhoe loader’s fire extinguisher and be familiar with its operation. Make sure you know your local fire regulations and fire reporting procedures.
10-50-3
B730 & B750 Service Manual
Check the coolant level only after the radiator cap is cool enough to touch. Remove the radiator cap slowly to relieve pressure. Do not allow your skin to come in contact with hot oil or components containing hot oil. At or near operating temperature, engine and hydraulic oil is hot and can be under pressure. Always wear safety glasses and protective gloves when handling batteries. Keep sparks or open flames away!
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Never permit anyone to hand guide the bucket or grapple into position.
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When working in the engine area, make sure loader safety strut is installed.
Fire And Explosion Prevention •
Always turn off the machine while refueling the backhoe loader.
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Never smoke or allow an open flame in refueling areas or where batteries are being charged, or where batteries or flammable materials are stored.
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Battery electrolyte can cause severe injury. If electrolyte touches your skin, wash the skin. If drunk by mistake, drink water or milk.
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Dealer Copy -- Not for Resale
•